| Rank | Abbreviation | Meaning |
|---|
| ***** | HRTC | High Resolution Telescope Cluster
| |
| *** | HRTC | Health Risk from Toxic Chemicals
| |
| *** | HRTC | high resolution computed tomography
| |
| ** | HRTC | High Resolution Technological Camera
| |
| ** | HRTC | Human Resources Technology Council
| |
| ** | HRTC | human renal tubular cells
| |
| ** | HRTC | Hampton Roads Technology Council
| |
| ** | HRTC | HR (Human Resources) Team Consult GmbH (Karlsfeld, Germany)
| |
| ** | HRTC | Home Renovation Tax Credit (Canada)
| |
| * | HRTC | High-Rate Turbo Code
| |
| * | HRTC | Harm Reduction Therapy Center
| |
| * | HRTC | Hydraulic Rough Terrain Crane
| |
| * | HRTC | Himachal Roadways Transport Corporation
| |
| * | HRTC | Houston Racing Triathlon Club
| |
| * | HRTC | Hoosier Rails to Trails Council
| |
| * | HRTC | Historic Rehabilitation Tax Credit
| |
| * | HRTC | Headquarters Relocation Tax Credit (Indiana Department of Revenue)
| |
| * | HRTC | Hard Real Time CORBA
| |
| * | HRTC | Human Rights Technical Cooperation
| |
| * | HRTC | Human Resources Training Center
| |
| * | HRTC | Hybrid Rockets Technical Committee
| |
| * | HRTC | Harvest Rain Theatre Company
| |
| * | HRTC | Hancock Rural Telephone Corp
| |